Paranoia actually do know what the other guy is saying
Answer:
yes i have.
Explanation:
why are you asking that:)
Answer:
The main advantage of an electromagnet over a permanent magnet is that the magnetic field can be quickly changed by controlling the amount of electric current in the winding. ... Electromagnets are also employed in industry for picking up and moving heavy iron objects such as scrap iron and steel
Explanation: will you mark me plz?